Slotted & Castle Nuts at Empire Bolt & Screw

Slotted Hex Nuts have slots cut into the top of the of the hex nut through the centers of all the opposing flats. Slots are cut into the non-bearing surface of the nut.  The slots are used for the insertion of cotter pins or safety wire to secure the nut when used with a drilled-hole shank fastener.  Slotted nuts are available in a variety of sizes, materials, and finishes. 

Castle Nuts are similar in function & application to their Slotted Nut cousin, with the noticeable difference of Castle Nuts having a raised, round "turret" on top of the nut's hex.  It is into this turreted, raised portion that the slots are cut, leaving the hex portion of the nut intact.

Call Empire Bolt & Screw or send us a Request for Quote on your Slotted & Castle Nut needs today.